fastapi==0.115.0 uvicorn==0.30.6 langchain==0.3.7 langchain-groq==0.2.1 langchain-core==0.3.15 langgraph==0.2.45 qdrant-client==1.12.1 sentence-transformers==3.3.0 python-docx==1.1.2 python-dotenv==1.0.1 pydantic==2.9.2